Fig. 3
Blind source separation of HFO rates. Each of the HFO rates presented in Fig. 1 are decomposed into groups of channels. The associations of each channel with each group (a–d, left), denoted by W, and each time epoch (a–d, right), denoted by H, are shown for each example patient. Denoting the rates in Fig. 1 by the matrix R, the blind source separation satisfies the matrix product R = W × H. White stars indicate the channels most involved with each source, which are color coded in Fig. 4
